GCC 5.2 Compiler Benchmarks With ARM Cortex-A57 A Mixed Bag

GCC 5.2 performing so poorly compared to GCC 4.8/4.9 isn't something I recall seeing in my many GCC x86 compiler benchmarks.

Unfortunately I don't have much more insight to offer right now since this is my first Cortex-A57 development board. While there were some tests where GCC 5.2 was faster than GCC 4.8, it seems in many of these Fortran/C/C++ benchmarks the performance was largely slower with this latest upstream stable compiler. The Ubuntu Toolchain PPA doesn't seem to do anything fundamentally different with their GCC builds compared to what shipped in Ubuntu 14.04 LTS. If anyone has more insight to these ARM GCC slowdowns, please feel free to share via the forums or by contacting me. Stay tuned for the GCC vs. Clang compiler benchmarks too for seeing how the LLVM-based compiler runs on the NVIDIA Jetson TX1.